Noise reduction units

[Zachman]

So other than rewireing the outlet to the breaker box, there is no cure for ground loop induced hum?

Iso transformers... of power supplies, w/ ground lifts

Depending on where the ground loop is-- you could cut the ground on one side of the audio cable from the source side of the ground loop.

You could star ground the entire rig

 

[yngzaklynch]

The other possible source of noise is that I have power lines about 40 ft outside the house.

 

[Zachman]

The other possible source of noise is that I have power lines about 40 ft outside the house.

Try experimenting with moving your power supply transformers/wall warts-- away from your audio lines and cross your AC power and audio lines at 90 degree angles to each other, whenever possible.

Do you have dimmer switches for your indoor lighting on your wall? BIG noise culprit

 

[glpg80]

Iso transformers... of power supplies, w/ ground lifts

Depending on where the ground loop is-- you could cut the ground on one side of the audio cable from the source side of the ground loop.

You could star ground the entire rig

Aloha brother Zach, hope all is well

iso trafo's are heavy, bulky, expensive, and do not need additional ground lifts because they already isolate the ground plane from the primary source of power.

the second sentence is 100% true and this is the true method to hunting down ground loops, but unless the user has a good idea as to why ground loop hum occurs and how it occurs, its not likely the most accepted method sadly, and depending on the build, there could be multiple ground loops due to the (poor) design of the products being used.

star grounding the entire rig requires isolated points to attach the connections - its not exactly easy nor feasable if you arent willing to dive in head first and tackle each and every product in the signal chain. seems it would just be easier to fix the said electrical box, watch for cable placement in regards to the AC plane, good (shielded) cable for audio lines, and assuring the guitars are not to blame/shielding the cavities themselves

 

[Zachman]

Iso transformers... of power supplies, w/ ground lifts

Depending on where the ground loop is-- you could cut the ground on one side of the audio cable from the source side of the ground loop.

You could star ground the entire rig

Aloha brother Zach, hope all is well

iso trafo's are heavy, bulky, expensive, and do not need additional ground lifts because they already isolate the ground plane from the primary source of power.

the second sentence is 100% true and this is the true method to hunting down ground loops, but unless the user has a good idea as to why ground loop hum occurs and how it occurs, its not likely the most accepted method sadly, and depending on the build, there could be multiple ground loops due to the (poor) design of the products being used.

star grounding the entire rig requires isolated points to attach the connections - its not exactly easy nor feasable if you arent willing to dive in head first and tackle each and every product in the signal chain. seems it would just be easier to fix the said electrical box, watch for cable placement in regards to the AC plane, good (shielded) cable for audio lines, and assuring the guitars are not to blame/shielding the cavities themselves

ALOHA my friend... Long time no talk. Things are going well, but for a little head cold that's bugging a bit. I hope all is well with you too.

I mainly put the iso transformers as a reference to multi-tap power supplies, and amp selectors-- like for pedal boards, and/or for guys using more than one amp but sharing common effects between multiple amps.

I agree 100% re: star grounding mainly being for the extreme nut jobs like me.

Keep Rockin!

 

[glpg80]

you too my friend, i go in for wisdom tooth extraction next friday, wish me luck! keep rockin

 

[Zachman]

you too my friend, i go in for wisdom tooth extraction next friday, wish me luck! keep rockin

O U C H...

Best of luck brother...

 

[Red_Label]

My noise gate in my tc electronic g-major is more than excellent it is superb. You simply need to know how to adjust it/program it.

I would be interested in knowing your settings. I've got a G-System, but haven't really spent too much time with the gate on it.

 

[sinfish]

I use the Decimator after my wireless at about -45. I also use my gmajor's noise gate to clean up the preamp & processor noise. It is completely silent and you would not know it is on if it weren't for the light and a noisy fan in the power amp (not heard in the signal chain) I really like the Decimator. I do have to turn it off for clean channel work though

 

[NinjaRaf]

Ok, Ive owned the NS-2 and both ISPs. The decimators dont justify the cost, IMO. The G-string is able to run in the loop and up front at the same time, and supposedly tracks your guitar signal separately from the loop, so you dont get cut off too soon. The regular decimator just runs up front. For the 40 bucks you can find NS-2s for all day long, they work too well for me not to stick with them. Plus, I sometimes feel like the decimators add a negative sound to my signal. With the ns-2, I get a little bit more brightness, but I kind of like that. Ultimately, its all preference. I once bought 5 noise gates from MF and tried them all out for 2 weeks...ended up keeping the NS-2...they included the decimator, decimator g-string, rocktron hush, MXR smartgate, and ns-2.

 

[7slinger]

I once bought 5 noise gates from MF and tried them all out for 2 weeks...ended up keeping the NS-2...they included the decimator, decimator g-string, rocktron hush, MXR smartgate, and ns-2.

similarly, I bought 2 pedal Decimators and 2 NS-2s and tried them all over...ended up with 1 NS-2 in "X" config

 

[yngzaklynch]

Interesting guys. Thanks.